How did we prototype?
Prototype process
Instaportal involves two parts: the monitor and the base. The monitor contains two 10-position BCD rotary switches, a mini-tactile pushbutton switch, a CdS photoresistor, a DHT22 temperature-humidity sensor, and an ESP32 feather board collecting and submitting the input values to the Adafruit cloud. The base would download interpreted values via the ESP32 feather board and present the texts accordingly on a FeatherWing OLED.
■ Camera component
import machine
import time
import network
import dht
from umqtt.simple import MQTTClient
def set_pin(*num):
list_num = []
for item in num:
pin_id = machine.Pin(item, machine.Pin.IN, machine.Pin.PULL_UP)
list_num.append(pin_id)
return list_num
def read_value(list_knob):
list_value = []
for item in range(len(list_knob)):
list_value.append(list_knob[item].value())
return list_value
def set_result(import_list):
export_value = 0
if import_list == [1, 1, 1, 1]:
export_value = 0
elif import_list == [0, 1, 1, 1]:
export_value = 1
elif import_list == [1, 0, 1, 1]:
export_value = 2
elif import_list == [0, 0, 1, 1]:
export_value = 3
elif import_list == [1, 1, 0, 1]:
export_value = 4
elif import_list == [0, 1, 0, 1]:
export_value = 5
elif import_list == [1, 0, 0, 1]:
export_value = 6
elif import_list == [0, 0, 0, 1]:
export_value = 7
elif import_list == [1, 1, 1, 0]:
export_value = 8
elif import_list == [0, 1, 1, 0]:
export_value = 9
return export_value
def internet_connect():
# connect the ESP to local wifi network
#
yourWifiSSID = "ACCD"
yourWifiPassword = "tink1930"
sta_if = network.WLAN(network.STA_IF)
if not sta_if.isconnected():
sta_if.active(True)
sta_if.connect(yourWifiSSID, yourWifiPassword)
while not sta_if.isconnected():
pass
print("connected to WiFi")
def light_detect(pin_id):
adc1 = machine.ADC(machine.Pin(pin_id))
adc1.atten(machine.ADC.ATTN_11DB)
return adc1
def light_convert(num):
if num < 1500:
result_value = 0
elif num < 2000:
result_value = 1
elif num < 2500:
result_value = 2
elif num < 3000:
result_value = 3
elif num < 3500:
result_value = 4
elif num < 4000:
result_value = 5
else:
result_value = 6
return result_value
def hum_detect():
global temp
global hum
global temp_f
sensor.measure()
temp = sensor.temperature()
hum = sensor.humidity()
temp_f = temp * (9/5) + 32.0
internet_connect()
#
# connect ESP to Adafruit IO using MQTT
#
myMqttClient = "itdoesnotmatter" # replace with your own client name
adafruitUsername = "fqhang" # can be found at "My Account" at adafruit.com
adafruitAioKey = "f8c8109354ca4d83b7a702d9101b2fc4" # can be found by clicking on "VIEW AIO KEYS" when viewing an Adafruit IO Feed
adafruitFeed1 = adafruitUsername + "/feeds/KnobValue1" # replace "test" with your feed name
adafruitFeed2 = adafruitUsername + "/feeds/KnobValue2" # replace "test" with your feed name
adafruitFeed3 = adafruitUsername + "/feeds/PhotoSensor" # replace "test" with your feed name
adafruitFeed4 = adafruitUsername + "/feeds/Temperature" # replace "test" with your feed name
adafruitFeed5 = adafruitUsername + "/feeds/Humidity" # replace "test" with your feed name
adafruitFeed6 = adafruitUsername + "/feeds/Switch"
adafruitIoUrl = "io.adafruit.com"
c = MQTTClient(myMqttClient, adafruitIoUrl, 0, adafruitUsername, adafruitAioKey)
button = machine.Pin(12, machine.Pin.IN, machine.Pin.PULL_UP)
photo_int = light_detect(34)
knob_green = set_pin(26, 25, 4, 14)
knob_white = set_pin(27, 33, 15, 32)
sensor = dht.DHT22(machine.Pin(13, machine.Pin.IN, machine.Pin.PULL_UP))
list_value1 = read_value(knob_white)
knob_value3 = set_result(list_value1)
list_value2 = read_value(knob_green)
knob_value4 = set_result(list_value2)
c.connect()
while True:
list_value1 = read_value(knob_white)
knob_value1 = set_result(list_value1)
list_value2 = read_value(knob_green)
knob_value2 = set_result(list_value2)
print(knob_value1)
print(knob_value2)
knob1_difference = knob_value1 - knob_value3
knob2_difference = knob_value2 - knob_value4
if knob1_difference != 0:
print("difference" + str(knob_value1))
c.publish(adafruitFeed6, str(knob_value1) + str(knob_value2))
list_value1 = read_value(knob_white)
knob_value3 = set_result(list_value1)
if knob2_difference != 0:
print("difference" + str(knob_value2))
c.publish(adafruitFeed6, str(knob_value1) + str(knob_value2))
list_value2 = read_value(knob_green)
knob_value4 = set_result(list_value2)
time.sleep(0.5)
if not button.value():
list_value1 = read_value(knob_white)
knob_value1 = set_result(list_value1)
list_value2 = read_value(knob_green)
knob_value2 = set_result(list_value2)
photo_value = light_convert(photo_int.read())
hum_detect()
c.publish(adafruitFeed1, str(knob_value1))
c.publish(adafruitFeed2, str(knob_value2))
c.publish(adafruitFeed3, str(photo_value))
c.publish(adafruitFeed4, str(temp_f))
c.publish(adafruitFeed5, str(hum))
print(list_value1)
print(knob_value1)
print(list_value2)
print(knob_value2)
print(photo_int.read())
print(photo_value)
print('Temperature: %3.1f C' %temp)
print('Temperature: %3.1f F' %temp_f)
print('Humidity: %3.1f %%' %hum)
time.sleep(0.5)
# 1.upload the data to the cloud
# 2.control two switches at the same time
# 3.connect to the esp32 to detect the sensors and print the variables
# 4.write classes
■ Base component
import machine
import time
import network
import ssd1306
from umqtt.simple import MQTTClient
# OLED Display
def initDisplay():
print("initDisplay called.")
oled.init_display()
oled.fill(0)
oled.text("Hello" , 0, 0)
oled.text("Welcome to" , 0, 10)
oled.text("Instaportal" , 0, 20)
oled.show()
def internet_connect():
# connect the ESP to local wifi network
#
yourWifiSSID = "ACCD"
yourWifiPassword = "tink1930"
sta_if = network.WLAN(network.STA_IF)
if not sta_if.isconnected():
sta_if.active(True)
sta_if.connect(yourWifiSSID, yourWifiPassword)
while not sta_if.isconnected():
pass
print("connected to WiFi")
def sub_cb(topic, msg):
global value
value = list(str(msg,'utf-8'))
print(value)
def obj_mode(int):
if int == '0':
oled.text("LandScape Mode", 0, 0)
elif int == '1':
oled.text("Portrait Mode", 0, 0)
elif int == '2':
oled.text("Animal Mode", 0, 0)
elif int == '3':
oled.text("Plant Mode", 0, 0)
elif int == '4':
oled.text("Sky Mode", 0, 0)
elif int == '5':
oled.text("Architecture Mode", 0, 0)
elif int == '6':
oled.text("Furniture Mode", 0, 0)
elif int == '7':
oled.text("Prairie Mode", 0, 0)
elif int == '8':
oled.text("Space Mode", 0, 0)
elif int == '9':
oled.text("Illusion Mode", 0, 0)
def mood_mode(int):
if int == '0':
oled.text("Happy Mode", 0, 10)
elif int == '1':
oled.text("Cry Mode", 0, 10)
elif int == '2':
oled.text("Blue Mode", 0, 10)
elif int == '3':
oled.text("Angry Mode", 0, 10)
elif int == '4':
oled.text("Casual Mode", 0, 10)
elif int == '5':
oled.text("Excited Mode", 0, 10)
elif int == '6':
oled.text("Crazy Mode", 0, 10)
elif int == '7':
oled.text("Desired Mode", 0, 10)
elif int == '8':
oled.text("Relax Mode", 0, 10)
elif int == '9':
oled.text("Scare Mode", 0, 10)
i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(23), freq = 100000)
oled = ssd1306.SSD1306_I2C(128, 32, i2c)
initDisplay()
internet_connect()
value = []
#
# connect ESP to Adafruit IO using MQTT
#
myMqttClient = "esp32" # replace with your own client name
adafruitUsername = "fqhang" # can be found at "My Account" at adafruit.com
adafruitAioKey = "f8c8109354ca4d83b7a702d9101b2fc4" # can be found by clicking on "VIEW AIO KEYS" when viewing an Adafruit IO Feed
adafruitFeed1 = adafruitUsername + "/feeds/Switch" # replace "test" with your feed name
adafruitIoUrl = "io.adafruit.com"
c = MQTTClient(myMqttClient, adafruitIoUrl, 0, adafruitUsername, adafruitAioKey)
c.connect()
while True:
time.sleep(0.5)
c.set_callback(sub_cb)
c.subscribe(bytes(adafruitFeed1,'utf-8'))
c.check_msg()
if len(value) == 2:
oled.fill(0)
obj_mode(value[0])
mood_mode(value[1])
oled.text("@instaportal", 0, 20)
oled.show()
